Respostas

2013-12-08T20:06:02-02:00
1 mol de H2SO4 -> 98 g
2mol = 2 . 98 = 196 g de H2SO4
1 5 1
2013-12-08T20:51:34-02:00
1 mol de H2SO4 tem 98 g
2mol= 2.98= 196 g